Method: Arql::Definition#initialize

Defined in:
lib/arql/definition.rb

#initialize(options) ⇒ Definition

Returns a new instance of Definition.



177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
 
# File 'lib/arql/definition.rb', line 177

def initialize(options)
  @@options = options
  @@models = []
  @@classify_method = if @@options[:singularized_table_names]
                        :camelize
                      else
                        :classify
                      end
  ActiveRecord::Base.connection.tap do |conn|
    Object.const_set('ArqlModel', Class.new(ActiveRecord::Base) do
                       include ::Arql::Concerns::TableDataDefinition
                       self.abstract_class = true

                       define_singleton_method(:indexes) do
                         conn.indexes(table_name).map do |idx|
                           {
                             Table: idx.table,
                             Name: idx.name,
                             Columns: idx.columns.join(', '),
                             Unique: idx.unique,
                             Comment: idx.comment
                           }
                         end.t
                       end
                     end)

    tables = conn.tables
    if conn.adapter_name == 'Mysql2'
      require 'arql/ext/active_record/connection_adapters/abstract_mysql_adapter'
      comments = conn.table_comment_of_tables(tables)
      primary_keys = conn.primary_keys_of_tables(tables)
    else
      comments = tables.map { |t| [t, conn.table_comment(t)] }.to_h
      primary_keys = tables.map { |t| [t, conn.primary_keys(t)] }.to_h
    end

    tables.each do |table_name|
      table_comment = comments[table_name]
      primary_keys[table_name].tap do |pkey|
        table_name.send(@@classify_method).tap do |const_name|
          const_name = 'Modul' if const_name == 'Module'
          const_name = 'Clazz' if const_name == 'Class'
          Class.new(::ArqlModel) do
            include Arql::Extension
            if pkey.is_a?(Array) && pkey.size > 1
              self.primary_keys = pkey
            else
              self.primary_key = pkey&.first
            end
            self.table_name = table_name
            self.inheritance_column = nil
            ActiveRecord.default_timezone = :local
            if options[:created_at].present?
              define_singleton_method :timestamp_attributes_for_create do
                options[:created_at]
              end
            end

            if options[:updated_at].present?
              define_singleton_method :timestamp_attributes_for_update do
                options[:updated_at]
              end
            end
          end.tap do |clazz|
            Object.const_set(const_name, clazz).tap do |const|
              const_name.gsub(/[a-z]*/, '').tap do |bare_abbr|
                abbr_const = nil
                9.times do |idx|
                  abbr = idx.zero? ? bare_abbr : "#{bare_abbr}#{idx+1}"
                  unless Object.const_defined?(abbr)
                    Object.const_set abbr, const
                    abbr_const = abbr
                    break
                  end
                end

                @@models << {
                  model: const,
                  abbr: abbr_const,
                  table: table_name,
                  comment: table_comment
                }
              end
            end
          end
        end
      end
    end
  end
end